Dine b



(NoMoael.) l

A J. P. WILSON.

GAR GOUPLING.

Patnted Nov. 2, 1886.

To all whom it may concern..-

UNITEDr STATED-S PATENT' OFFICE. v

JOHN I. WILsON, OF POUGHKEEPSIE, NEW YORK, AssIGNOn To GERAL- D'IllE B.WILSON,

OFjsAME PLACE. e'

CARC'OUPLI'NG.

i SPECIFICATION forming part of Letters Patent No. 352,104, datedNovember 2, 1 88'6.

y Application led pril 27, 1886. Serial No. 200,346. (No model.)

- Bc it known that I, JOHN P. WILSON, a citizen of the United States,residing at Poughkeepsie, in the county of Dutchess and State of NewYork, have invented certain new and nseful'lmprovementsin Car-Couplers;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to car-couplers;` and it consists in theconstruction andarrangement of the partsA of the same, which will bemore fully hereinafter described, and definitely pointed out in theclaims. Y -v My `invention is an improvement on the coupler shown'anddescribed in the application of J. G. Slater, filed February 20, 1886,

. Serial N o. 192,645.

The objectwof my invention is to provide an automatic coupler in whichthe coupling-pin shall have an easy but positive action, which is simplein its construction, strong and durable, and cheaply manufactured. -Iattain these objects by the construction of coupler illustrated in theaccompanying drawings, where in like letters of reference indicatesimilar parts inthel several views, and in which- Figurel is aperspective view of a drawhead with my improved, coupler appliedthereto.v Fig. 2 is alongitudinal vertical section of my'improvedcoupler, showing the coupling-pin in two positions in dotted lines. Fig.31s a view similar to'Fig. 1, showing the coupling-pin in alockingposition in dotted lines. l Fig. 4 is an elevation of thelink-pin. `A represents the draw-head; B,fthe. drawbar. vertical1ongitudinal`slot,b, through which the coupling-pin D passes, saidlongitudinal vertical slot having transverse slots d at the top thereof,through which the wrist-pins d3, on the coupling-pin D, enter a camway,C, formed transversely to the longitudinal slot b, the walls of saidcamway being formed of varying curves and inclines, with the .front wallperpendicular. These several forms of construction were fullyillustrated and described in the application aforesaid, my improvementthereon being-as follows:

The draw-head A is provided with al The front wall, o, is form-edperpendicularly to the pointe', where the wall is curved to form a seatfor the wristpins di, when the couplingpin D is in alocking position.From the point c a wall, 1, extends upward on an 'incline to the point2, from whence a short wall, 3, extends to the point 4, which isinclined into the camway at about right angles to the wall 1. From thepoint 4 to the point 6'ashort wall is formed, and from the point6 to thepoint 8a slight indentation isl formed. From the points 2, 4, 6, and 8the Wall is constructed in the form' of a projection, `thel under sideof which `acts as a stop and prevents the coupling-pin from passing upthrough theopening b' by a sudden jar or ycommotion of the link E. Fromthe point l8 an inclined lwall extends upward, which merges into andforms one wall of the transverse opening b.

As heretofore stated, the wall c from the point c to the poi-nt 410 isperpendicular, and from the point 10 to the point 12 the wall is in theforni of a rounded projection, 13, and from said projection a concavedcurved rest, 15, is formed up to the point 14. From the point 14 aslightly upward curved wall, 17, is

less amount of incline, so that its full end will strike against theinclined face of the drawhead A with which it is'desired to couple.

The coupling-pin D is formed with a single projection, 19, on its lowerportion, adjacent toits lower front inclined edge. This projection formsan indentatiomwhich engages with the front wall, b2, of the longitudinalvertical slot'b when the pin-is iii a coupled position. The lowerfront-end of the said pin is further braced against the lower front wallof the longitudinal vertical slot b; The rear wall of said loo i slot tis formed on an incline and of a contour similar to the rear side of thecouplingpin. The coupling-pin D is preferably made Hat, so that the saidlongitudinal vertical slot through which the said pin passes can be ofnarrow construction, being just wide enough to allow the passage of thesaid pin D, thereby causing the wristpins d3 to accurately engage withthe cainway C. The front wall of the aperture b is slightly inclinedtoward the front of the head, the coupling pin D resting against thesame in a slightly forward inclined position, thus having a moresecurely-braced position against the action of thelink E. An aperture,d, is formed near the top of the coupling-pin D, in which a small chain,cable, or rope, d, is secnred,and extends down through staples c a,secured to the side of the drawhead A, and has a ring, di, attached toits lower end, which is of such a size as to prevent it from passingthrough the said staples a a., thereby always keeping the cord d in oneplace, and in a convenient position for use.

rPhe cord d is of snilicient length to allow the coupling-pin to beremoved from the drawhead and at the same time be secured in thedrawhead. 4,

The operation of my improved coupler is as follows: The pin yD beingarranged in a lowered position, with its wrist-pins d resting in theportion of the wall c", the incoming link E of another ear strikes thelower inclined front edge of the said coupling-pin, and raising it inthe vertical longitudinal slot I), the wrist-pins d3 moving upward inthe caniway C, allowing the link to pass under the pin. The couplingpinthen drops down by gravity through 4the link and holds it in a coupledposition. Then it is desired to unconple the link, the pin D is drawnupward and the link allowed to pass out. Vhen the pin D is suddenlyforced upward when struck by an incoming link in coupling, the said pinwill always remain in position in the vertical longitudinal slot b, inconsequence ofthe wrist-pins d remaining in engagement wi h the caniway,and when the pin rises these wrist-pins strike against the projectionformed in the rear wall of said camway, between the points 2 and 4, andprevent the said wrist-pins from passing up into the transverse slots b.By the construction of the rear wall from the points 2 to 4, 4 to G, 6to 8,

and thence up to the transverse entrances b', as described, thecoupling-pin D will be admitted to the vertical longitudinal slot Z1,with the wrist-pins d in engagement with the carnway, in one positiononly, and that is when the front portion ofthe said link-pin is towardthe front of the draw-head. By this means the link-pin cannot beinserted in the said slot and caniway, except in its operative position.When it is desired to place the couplingpin in a raised position, thesaid pin is drawn upward until the wrist-pins thereon engage with theseat '1.5, formed in the upper wall. When the pin is in this position,the lower point clears the link-recess 18, andthe link is left free toenter or withdraw from the said recess in making ii'yi ng switches, orfor any other purpose desired.

lt is obvious that the walls ol' the camway may he constructed curved orstraight, as may the nature and principle of my invention.

Having thus described my inventiomwhatl claim as new, and desire tosecure by Letters Patent, is-

1. In a car-coupler, the combination, with a draw-head having a Verticallongitudinal slot therein, of a cainway extending transversely from eachside oi" the said vertical longitudinal slot, said eamway havingirregular: walls with a rest formed in the upper portion anda projectionin the rear portion thereof, a linkpin having wrist-pins engaging withthe verhorizont al link recess, substantially as described, and for thepurposes specified.

2. In a car-coupler, the combination, with a draw-head having a verticallongitudinal slot therein and a calnway extending transversely from eachside of said slot, of a iiat couplingpin engaging with said slot andeamway and a cord secured near the top of said couplingpin, passing downthrough staples on the outside of the d raw-head, substantially asdescribed.

In testimony whereofI affix my signature in presence of two witnesses.

JOHN r. wiLsoN'.

Vitnesses:

W. C. HAIGHT, F. LYMAN BROWN.

tical longitudinal slot and the carnway, and abe desired, without in the least departing 'from

